Chapter 13, Problem 13A.4AE

Interpretation Introduction

Interpretation:

The temperature of a two level system of energy separation equivalent to $\text{400}{\text{cm}}^{-1}$ has to be stated when the population of the upper state is one-third that of the lower state.

Concept introduction:

Statistical thermodynamics is used to describe all the possible configurations in a system at given physical quantities such as pressure, temperature, and a number of particles in the system.  The important quantity in the thermodynamic is partition function that is represented as shown below.

  $q\equiv {\displaystyle \sum _i{g}_i{e}^{-\beta {\in }_i}}$

It is also known as canonical ensemble partition function.